php 格式化数字

protected function float_number($number){
        $length = strlen($number);  //数字长度
        if($length > 8){ //亿单位
            $str = substr_replace(strstr($number,substr($number,-7),' '),'.',-1,0)."亿";
        }elseif($length >4){ //万单位
            //截取前俩为
            $str = substr_replace(strstr($number,substr($number,-3),' '),'.',-1,0)."万";
        }else{
            return $number;
        }
        return $str;
    }

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转载自blog.csdn.net/qq_38324424/article/details/106851389